Scraper



Aug. M, w23. www@ R. P. McNl-:IL l

SCRAPER FiledDe. l2. 1921 2 Sheets-Sheet 1 I C i CD c i ICD a l i719 j l /f f 53 51, A n 12 Z@ 20 j I l KI" #Il f5 24 2:1' .l I l 'JJM 36 f w INVENTOR 'I 3f Z5 @PMSA/GU.

/ ATTORNEYS.

Aug. 14,1923. y www@ Y R. P. MCNEIL SCRAPER Filed Dec. 12 1921 2 Sheets-Sheet 2 Y INVENTOR f? R /W-c /Vc/'/.

ATTORNEYS.

Patenteezi ug. 14, 1923.

Ronnnrox i?. MGNEIL, or Barano., wlisrlrineroiv.

SCRAPER.

Application flied December 1'2, 1921. Serial No. 521,798.

VTo all 'LU/10m t may concern: Y

Be it known that I7 Ronniuoir I. McNnrL, a citizen of the United States, residing at Baring,V in the county of King and 'State of Vashington, have invented certain new and useful Improvements in Scrapers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the y same. Y

This invention relates to earth Scrapers and dumping vehicles, and particularly to a form of scraper which will excavate below the carrying wheels, and when filled may be raised by the carrying wheels and transported thereby and emptied or dumped by either a forward or backward motion ot the carrying wheels.

The objects of the invention are to pro-V vide a form of combination earth scraper or` excavator and dump vehicle,v which may be attached to any common form or" tractor and operated by the driver of the tractor by means of toot pedals placed in suitable position to be reached from the seat of the tractor.

A Jfurther object is to provide a combina# tion scraper and dump vehicle supported on two carrying wheels with scraper pan mounted on a frame which may be lowered or raised and the pan caused to excavate below the line ot the wheels and when illcd to be raised and'transported to the dumping place and then emptied either from the front or rear of the vehicle.

The Scrapers in common use generally require the services ofmore than one inan'ifor filling and dumping, and must be emp tied tipping'the scraper pan forward which requires that the tractor or other motor power precede in position the scraper vehicle, and

this is difficult where the dumping" place isV near or at the edgeof a high fill or embankment, and bymv'invention I have provided a. scraper and dumping vehicle which may be dumped backward as well as forward so that the tractor operating the apparatus may be kept at a suitable distance from the edge of the embankment while the earth from the scraper pan may be deposited at the brink of the bank.

Figure 1 is a side elevation with thel scraper pan raised;

Fig. 2 is a top plan of Fig. l;

and afiiXed in front end ot' pan marked 12 elevation with the pan end provided with an eye 2V for connection with any desired tractor. the rear end extends up at right angles to form an arm 3 which is pivotally connected onpin 4 which is positioned in the hole 5 in arm 3 'for support from the upright-parts of the main axle G. The side posts ot1 the axle Aare connected as a part of cross bar 7, and the main wheel spindles S :tor supporting the 'frame which extendsout lfrom the lower ends oi posts 6, and anysuitable supporting` wheels 9 rotate on the spindles, while the main scraper pan 10 is pivotally supported on central pin 10a. The lower front end ,of the pan is sharpened down to an edge `11 for digging. and a reinforcingA back. 10b is provided to form the pan for use. A lug 12 is provided forV supporting the iront end ot the pan when loading and loaded, by means of' a supporting hook 13 pivotally connected to the frame l by pin 111,the top of hook 18 extending above the trame and connected by pin to rod 15, the latter to link 1G on pivot rod 1Gil with another connecting rod 17 which is pressed forward by pedal. 18 on lever 19 attached to the Yframe 1 so that when the pedal is depressed the hook 13- is thrown back from supporting the lug 12 thus permitting the scraperV pan to' rotate cuits axle pins 10, and to discharge its contents when the vehicle is drawn forward, and in case the dumping is to be behind the vehicle,

the latter is backed and the pan rolls over backward on its axles and side 10c until the open front end is toward the rear ofthe ve- V hicle when the contents falls outas desired. and the forward motion of the machine then returned the pan to its position as at first and the supporting' hook is thrown into position under the lug 12 by spring 20 connected to lever 19 and the trame 1 normally holding lever 19 toward the iframe.

The position of the scraper pan is elevated or lowered with the supporting wheels by movement of the frame l forward which action is permitted by the side posts of the main axle 6 tilting back as in Fig. 3 to depress the pan or forward to position in Fig. l to raise the pan, and the trame is held in either position as may be desired by a latch member A, on a pivot pin l5, the pin passing through the latch and holding1 the same for operation against the post 6 of the main axle. The front end o the latch is turned at right angles to form a pawl 2l for holding the frame, as the pawl drops into depressions on top ol:l the trame as 22 as shown in Fig. l and when Ytrame is Vtilted down the pawl drops Vin front oit' shoulder 23 on the frame and when in this position the main wheels are lifted above the ground and the machine is supported upon the pan and so remains until the pawl is withdrawn from the notch E23 and the frame thrown forward by the ratchet wheel 26 which is attached to inside or main wheel hub. rllhe rear end ot' the latch is also turned at right angles for lock bolt 2st or rear pawl which is thrown into the ratchet wheel teeth as the trent pawl 2l.is raised and as the traine is then drawn forward with pawl 2a against the ratchet the main wheels 9 are thrown 'forward and downward until they raise the pan to position in Fig. l, when pawl 2l again drops into notch 22 of frame, by tension oi" sprinzeT 28, Y

rllhe latch or pawl member is operated by foot pedal 28 hinged to'front end of 'trame with a connecting rod 29 attached thereto and connected by the pivot rod 3() to another rod 3l which is linked to bell crank Sla journaled to pest G by bearing 32, and a final rod 33 extending' from the crank and hooked into an ear ol the latch member.

The spring 255iL normally holds the pawl 23 'lhe back into one ot the notches in trame. end of A is bevelled as at Sil and the rear endA ot the frame is curved up to form a lug 35, and as the traine is drawn forward and the pan raised the lue,- slides under the back end oll the member A and securely holds the latch pawl 2l clear 'from the ratchet wheel 26 until the frame is pressed backward again. The distance back which the frame may be tilted or moved and the consequent depth to which the scraper pan may be permitted below the wheels is renie lated by stop blocks 36, on the outside ot' the trame which are adjusted by placing;` them in a Aseries ot holes 37 provided along;`

the trame and cooperating,` with the lugsV and means for operating the hooks to release the same trom the Ylugs and torce the hooks again under the lugs, means tor holding the arms of the axle in a predetermined position with respect to the sides of the traine, means for operating the holding means 'for readjusting the said position ot the frame and axle, and means tor empty'- ing said scraper either forwardly or rearwardly. i

2. ln a scraper and dump vehicle with carryingl wheels mounted on a U-shaped axle, with a scraper. pan pivotally sup-i ported on the traine near the center thereoit, the pan revolvable about the pivotally sulriportingcenter, and means Ytor holding); the pan in a predetermined position for diggingl or carrying material, said traine beinpy mounted pivotally to the axle at a point above the center of ythe axle to permit the frame to move forward and back to a predetermined position adjacent the axle means ttor holding; the axle and 'trame in a fixed position with each other, and means for emptyingsaid scraper either Aforwardly or rearwardly.

In a scraper and dump apparatus with a trame supported on an axle with carrying' wheels on the axle, with a scraper pan sup portedby the 'frame and means 'for raising' the wheels above the lower edge ot' the pan, and means tor raising the pan above the lower edges ot the wheels.

ture.

RODERICK P. MCVEIL. 

